等とう圧あつ面めん

noun

isobaric surface; constant-pressure surface

Technical term in meteorology and fluid dynamics for a surface where atmospheric pressure is equal at every point.

• 天てん気き図ずでは、等とう圧あつ面めんの高こう度ど分ぶん布ぷが重じゅう要ような情じょう報ほうとなる。

  On weather maps, the height distribution of isobaric surfaces provides important information.